FIELD: building material, in particular chipboard manufacturing.
SUBSTANCE: claimed binder agent contains (mass %): carbamide-formaldehyde resin 30-70: product obtained by treatment of lignosulfonate on sodium base with filtrate of fungi P.tigrinus inoculate in ratio of 3:2 30-70. Further provided by the present invention is method for binder manufacturing which includes component mixing wherein lignosulfonate is treated with filtrate of fungi P.tigrinus inoculate as described above is carried out at 60-700C for 2-2.5 h.
EFFECT: binding agent-containing chipboards with increased strength and reduced toxicity and cost.
2 cl, 2 tbl, 1 ex
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